package patten.xingwei.observer.demo2;

/**
 * Description：房间抽象主题
 * Author：zwenzhi
 * Date：2023/11/17 14:06
 */
public interface RoomSubject {
    void addObserver(SensorObserver sensorObserver);
    void removeObserver(SensorObserver sensorObserver);
    void notifyObserver();
}
